JP2019040146A - Large-sized display device - Google Patents

Abstract

To provide a large-sized display device capable of projecting a video at a high position even when being mounted on a vehicle with a height limit.SOLUTION: A large-sized display device 20 includes: a large-sized display 21; a lifting device 30 arranged on a loading space 10 of a vehicle to hold the large-sized display 21 in a liftable way; and a connection holding device 40 for holding the large-sized display 21 by connecting the display to a lifting table 31 of the lifting device 30. The connection holding device 40 includes: a display fixing frame 41 to be fixed to the large-sized display 21; and a table fixing member 50 to be fixed to the lifting table 31. The display fixing frame 41 is fixedly connected to the table fixing member 50 so that a lower part of the large-sized display 21 becomes lower than the lifting table 31 in a state that the large-sized display is vertically erected on a side of the lifting table 31.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a large screen large display, and more particularly to a large display device mounted on a loading platform of a vehicle such as a truck.

  Conventionally, a service has been provided in which a truck with a large display mounted on a loading platform of a truck, which is a movable vehicle, is dispatched to an event such as outdoors, and an image is displayed on the large display outdoors. For example, Patent Documents 1 and 2 below disclose trucks and trailers equipped with large displays.

JP 2011-17735 A Japanese Utility Model Publication No. 5-80879

  However, the large display devices disclosed in the above Patent Documents 1 and 2 have a fixed large display height. Usually, vehicles such as trucks and trailers have a roof height limited by law. A large display cannot be installed at a high position to project images.

  Therefore, when a large display device disclosed in Patent Documents 1 and 2 is used to project an image in a wide outdoor venue, the large display device is low in height, so people away from the large display device are in front. People get in the way, making it difficult to see the video.

  The present invention has been made in view of such problems, and provides a large display device capable of projecting an image at a high position even when mounted on a vehicle with a height restriction. With the goal.

  In order to solve the above-mentioned problems, a large display device according to the present invention is a large display device comprising a large display and a lifting device that is installed on a loading platform of a vehicle and holds the large display so as to be lifted and lowered. A connection holding device for connecting and holding the display to the lifting table of the lifting device; the connection holding device; a display fixing frame fixed to the large display; a table fixing member fixed to the lifting table; The display fixing frame and the table fixing member are connected and fixed so that the lower part of the large display is vertically lower than the lifting table in a state where the large display stands vertically on the side of the lifting table. It is characterized by.

  Further, the vehicle equipped with a large display according to the present invention is a vehicle equipped with a large display provided with the large display device, wherein the cargo bed is a wing body having a transparent wing whose side facing the screen of the large display is transparent. Features.

  According to the large display device of the present invention, it is possible to display an image in a state where the large display is safely positioned at a high position even when the large display device is mounted on a vehicle with a height restriction.

FIG. 1 is a perspective view of a truck with a large display according to an embodiment of the present invention. FIG. 2 is a perspective view of a large display-mounted truck according to an embodiment of the present invention. FIG. 3 is a front view of the transparent wing of the large display-mounted truck according to the embodiment of the present invention. FIG. 4 is a plan view of the loading platform of the truck with a large display according to the embodiment of the present invention. FIG. 5 is a front view of the large display device according to the embodiment of the present invention. FIG. 6 is a rear view of the large display device according to the embodiment of the present invention. FIG. 7 is a side view of the large display device according to the embodiment of the present invention.

  Hereinafter, with reference to the drawings, a description will be given of a large display device that can be moved up and down and is installed on a loading platform of a vehicle according to the present embodiment. In the present embodiment, a description will be given by taking as an example a large display-equipped truck (vision truck) in which the large display device is installed on the loading platform.

FIG. 1 and FIG. 2 are perspective views of a large display mounting truck according to the present embodiment. FIG. 1 shows a state in which the transparent wing is opened, and FIG. 2 shows a state in which the transparent wing is closed. FIG. 3 is a front view of the transparent wing of the truck with a large display according to the present embodiment.

  FIG. 4 is a plan view of the loading platform of the large display truck according to the present embodiment, and the right side in the figure is the front side in the traveling direction. FIG. 5 is a front view of the large display device according to the present embodiment. FIG. 6 is a rear view of the large display device according to the present embodiment. FIG. 7 is a side view of the large display device according to the present embodiment.

  1 and 5 show the rising state of the large display, and FIGS. 2, 6 and 7 show the lowering state of the large display. 5 to 7, the generator is omitted.

  The vision track 1 includes a loading platform 10 and a large display device 20 installed on the loading platform 10. The loading platform 10 is a wing body and includes an opaque wing 14 that is located on the right side in the traveling direction and cannot be seen from the outside, and a transparent wing 15 that is located on the left side in the traveling direction and is transparent and visible from the outside. .

  Both wings 14 and 15 are configured to be able to be opened and closed by a flip-up type independently of the cargo bed body. The wing 14 is made of an opaque stainless steel flat plate on both the upper surface and the side surface. The transparent wing 15 has an upper surface 15a made of an opaque stainless steel flat plate, while a side surface 15b made of a transparent polycarbonate flat plate.

  As shown in FIG. 3, the side surface 15b of the transparent wing 15 connects a metal frame 16, ten vertically long transparent divided polycarbonate plates 17 obtained by dividing the side surface 15b in the traveling direction, and adjacent divided polycarbonate plates 17. A vertically-long transparent polycarbonate bar 18 and a wooden reinforcing frame 19 for reinforcing the frame 16 are provided.

  The transparent connection polycarbonate bar 18 has the same length as the transparent division polycarbonate plate 17, and the transparent division polycarbonate plate 17 is screwed and fixed in a state of being superimposed on the transparent connection polycarbonate plate 18. Adjacent transparent divided polycarbonate plates 17 are overlapped and fixed by dividing the same transparent connected polycarbonate plate 18 into two in the width direction.

  Thus, the side surface 15b of the transparent wing 15 constituted by the transparent divided polycarbonate plate 17 and the transparent connecting polycarbonate plate 18 is transparent, and the inside of the loading platform 10 can be seen from the outside even when the transparent wing 15 is closed (see FIG. 2). Can see.

  As shown in FIG. 4 and the like, a large display 21 (described later) is vertically installed on the inside of the side surface 15b of the transparent wing 15 in the closed state in the loading platform 10, and the transparent wing 15 is closed. Even in the state, the image projected on the large display 21 can be viewed from the outside.

  Further, since the transparent side surface 15b of the transparent wing 15 is not formed of one large transparent polycarbonate plate, but is formed by connecting a plurality of transparent divided polycarbonate plates 17, the side surface 15b Even if some parts are dirty or damaged and need to be replaced, it is not necessary to replace the polycarbonate plate on the entire side surface 15b, and only the corresponding transparent divided polycarbonate plate 17 needs to be replaced. Can be suppressed.

  As shown in FIGS. 4 to 7, the large display device 20 supplies power to the large display 21, the lifting device 30, the connection holding device 40 for connecting and holding the large display 21 to the lifting device 30, and power. And a power generator 70.

  The large display 21 is a multi-display that realizes one huge screen by arranging a plurality of small displays 23 vertically and horizontally in a tile shape. In this embodiment, the large display 21 is composed of a total of 18 small displays 23, 3 in the vertical direction and 6 in the horizontal direction.

  The elevating device 30 is a device that supports the large display 21 and raises or lowers it. The elevating table 31, the cross arm 33, the lower frame 34, and a hydraulic pressure that is a driving force source that expands and contracts the cross arm 33. And a cylinder 37.

  The lifting table 31 is connected to the upper end of the cross arm 33, and the lower end of the cross arm 33 is connected to the lower frame 34 fixed to the floor surface 13 of the loading platform 10. The lower frame 34 is fixed to the floor surface 13 of the loading platform 10 with bolts.

  As the cross arm 33 expands and contracts by driving the hydraulic cylinder 37 connected to the cross arm 33, the lifting table 31 moves up and down with respect to the loading platform 10.

  The connection holding device 40 includes a display fixing frame 41, a table fixing member 50, and a display overturning prevention mechanism 60, and the lower end of the large display 21 stands vertically on the side of the lifting table 31. The elevating table 31 is connected and held so as to be lower.

  The display fixing frame 41 is a frame that is fixed to the back side of the large display 21 and includes an outer frame 42, a table connection vertical frame 43, and a reinforcing vertical frame 45. The outer frame 42 is a rectangular frame that is fixed to the periphery of the back surface of the large display 21 with screws.

  The table connection vertical frame 43 is a vertical frame that extends in the vertical direction between the upper side and the lower side of the outer frame 42 and is connected and installed, and is a member that is connected to the table fixing member 50. The table connection vertical frame 43 includes a display fixing plate 44 that is fixed to the back side of the large display 21 (small display 23).

  The reinforcing vertical frame 45 is a vertical frame that extends in the vertical direction between the upper and lower sides of the outer frame 42 and is connected and installed on both outer sides of the table connecting vertical frame 43 in order to reinforce the outer frame 42. As with the table connection vertical frame 43, a display fixing plate 46 fixed to the back side of the large display 21 (small display 23) is provided.

  In this way, the display fixing frame 41 is screwed and fixed to the back side of the large display 21 in the display fixing plates 44 and 46 of the outer frame 42 and the vertical frames 43 and 45, and the lifting table 31 is fixed in the table connecting vertical frame 43. It is connected and fixed to a table fixing member 50 fixed to the head.

  The table fixing member 50 includes a fixing bar 51 fixed to the upper surface of the lifting table 31 and a reinforcing trapezoidal plate 55. The fixed bar 51 has one end on the large display 21 side fixed to the table connection vertical frame 43 of the display fixed frame 41 and the entire surface in the vehicle width direction, which is the direction orthogonal to the screen of the large display 21 on the upper surface of the lifting table 31. It extends and is connected and fixed by bolts.

  A table end wrap-around portion 52 is formed at the other end of the fixed bar 51 on the lift table 31 side, and the other end of the fixed bar 51 wraps around to the lower surface at the upper end portion of the table to the lift table 31. It is configured to be fixed.

  When the thin large-size display 21 is tilted to the left in the vehicle width direction, which is a direction orthogonal to the screen, due to its own weight, a force in the direction of floating away from the upper surface of the lifting table 31 acts on the fixed bar 51. By forming the wraparound portion 52, the fixing bar 51 can be reliably fixed so as not to be separated from the upper surface of the lifting table 31.

  The reinforcing trapezoidal plate 55 is a trapezoidal plate for reinforcing the connecting and fixing part of the table connecting vertical frame 43 and the fixing bar 51, the bottom part is welded and fixed to the fixing bar 51, and the trapezoidal leg part is It is fixed to the table connecting vertical frame 43 by welding (see FIG. 7 and the like).

  The display toppling prevention mechanism 60 is a mechanism for preventing the large display 21 installed near the left side in the traveling direction of the loading platform 10 from falling to the left side by its own weight, and is connected to the display fixing frame 41 side. Display side roller 61 and a loading platform side rail 63 fixedly installed on the loading platform 10 side (see FIGS. 5 and 6).

  The loading platform side rail 63 is fixedly installed extending in the vertical direction at the front end portion and the rear end portion on the left side in the width direction of the loading platform 10, and the horizontal section is a U-shape opened on the side where the display side roller 61 is inserted. It has become a shape. Therefore, the display-side roller 61 located in the recess of the cargo bed side rail 63 is accommodated in the recess of the cargo bed side rail 63, and three directions are surrounded by the inner surface of the recess.

  The display-side roller 61, which is a display-side sliding member, is rotatable about a rotation axis parallel to the traveling direction by a support member 62 protruding in the traveling direction from the side of the outer frame 42 of the display fixing frame 41. , And is supported so as to be positioned in the recess of the loading platform side rail 63.

  When the elevating table 31 moves up and down, the display side roller 61 slides in the recess in the vertical direction while rotating and sliding in contact with the inner surface of the cargo bed side rail 63 integrally with the elevating operation of the display fixing frame 41.

  In a state where the large display 21 that is a heavy object is held by the connection holding device 40 on the left side of the lifting table 31 in the vehicle width direction, the large display 21 has a force that tends to fall outside the left side in the width direction due to its weight. It acts, and it will be in the state leaning a little to the left outer side.

  At this time, the display-side roller 61 connected to the display fixing frame 41 comes into contact with the inner surface on the left outer side in the concave portion of the loading platform-side rail 63 fixedly installed on the loading platform 10. Since it is supported, the large display 21 is prevented from falling outside.

  When the lifting device 30 operates and the large display 21 moves up and down, the holding by the connecting and holding device 40 is more unstable than when stationary due to friction and vibration during driving, but the display side roller even during lifting 61 is located in the recess of the loading platform side rail 63 and is in contact with the inner surface thereof, and the large display 21 is restricted so as not to move in the vehicle width direction, and is prevented from falling.

  The configuration of the large display device 20 has been described above. Next, the usage mode of the large display will be described. First, when moving the vision track 1 to the venue in order to play a video at the event venue, as shown in FIG. 2, the large display 21 is lowered and the wings 14 and 15 of the loading platform 10 are closed. After making the vehicle ready to run, the vision track 1 is self-propelled and moved to the venue.

  At this time, in the present embodiment, the side surface 15b of the transparent wing 15 on the left in the traveling direction facing the screen of the large display 21 is transparent, and images are projected on the large display 21 while the vision track 1 is traveling, It is possible to show images.

  When the vision track 1 arrives at the event venue and displays an image in a stopped state, the transparent wing 15 is opened and then the elevator 30 is operated to display the image after the large display 21 is raised. .

  In this way, by placing the large display 21 in a raised position at a high place, it is possible to display an image at a high position without being influenced by the vehicle height restriction when the vision truck 1 is traveling, and more It is possible to provide video to the audience.

  In the present embodiment, the large display 21 is connected to the lifting table 31 so that its lower end is lower than the lifting table 31 with the large display 21 positioned on the left side instead of on the lifting table 31, so that it is in the lowered state. It is easy to clear the height limit of the vehicle by lowering the height of the large display 21 and to lower the center of gravity of the large display 21 and to prevent falling.

  Moreover, in this embodiment, since the display fall prevention mechanism 60 is provided and the display fixing frame 41 (large display 21) is regulated so as not to move in the vehicle width direction, the large display 21 that is a heavy object is attached to the loading platform 10. It is possible to reliably prevent the vehicle from falling down toward the outside.

  In this embodiment, since the left side surface 15b of the wing body loading platform 10 is transparent, the large display 21 on the loading platform 10 can be seen from the outside even when the wings 14 and 15 are closed. Even during traveling, the video can be displayed on the large display 21 and shown to the surrounding people.

  Further, in the present embodiment, since the wing body loading platform 10 is employed, the large display device 20 can be accommodated in the loading platform 10, and the large display device 20 cannot be touched from outside the vehicle if the wings 14 and 15 are closed. The crime prevention is also excellent.

  Moreover, in this embodiment, while installing the large display 21 which is a heavy load on the left side in the width direction of the loading platform 10, the load balance of the loading platform 10 is obtained by installing the generator 70 which is also a heavy load on the right side. Prevents tilting when driving.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to embodiment mentioned above, A various deformation | transformation is possible within the range which does not deviate from the main point of this invention. For example, the shape, material and size of the members constituting the vision track can be appropriately changed.In the above embodiment, polycarbonate is adopted as the transparent material constituting the transparent wing. Other materials such as transparent acrylic resin can be used as appropriate.

  In the above-described embodiment, the truck is described as an example of the vehicle on which the large display device is mounted. However, the present invention is appropriately applied to any vehicle that can install the large display device such as a trailer or a train. Can do.

  Moreover, in the said embodiment, although the roller is employ | adopted as a display side sliding member which comprises a display fall prevention mechanism, it may be a simple slide piece which can be accommodated in the recessed part of a loading platform side rail, and can slide.

DESCRIPTION OF SYMBOLS 1 Large display loading truck 10 Cargo bed 13 Floor surface 14 Wing 15 Transparent wing 15a Upper surface 15b Side surface 16 Frame 17 Transparent divided polycarbonate plate 18 Transparent connection polycarbonate bar 19 Wooden reinforcement frame 20 Large display device 21 Large display 23 Small display 30 Lifting device 31 Lifting Table 33 Cross arm 34 Lower frame 37 Hydraulic cylinder 40 Connection holding device 41 Display fixing frame 42 Outer frame 43 Table connecting vertical frame 44 Display fixing plate 45 Reinforcing vertical frame 46 Display fixing plate 50 Table fixing member 51 Fixing bar 52 Rounding the table end Part 55 Reinforcement trapezoidal plate 60 Display overturn prevention mechanism 61 Display side roller 62 Support member 63 Cargo bed side rail 70 Generator

Claims (5)

In a large display device comprising a large display, and an elevating device that is installed on a loading platform of a vehicle and holds the large display so as to be movable up and down,
A connection holding device for connecting and holding the large display to the lifting table of the lifting device;
The connection holding device is
A display fixing frame fixed to the large display;
A table fixing member fixed to the elevating table,
The large display is configured to connect and fix the display fixing frame and the table fixing member so that a lower portion thereof is lower than the lifting table in a state where the large display stands vertically on the side of the lifting table. Large display device characterized by The connection holding device is
A display side sliding member connected to the display fixing frame side;
A loading platform side rail formed with a recess in which the sliding member is accommodated, which is fixedly installed to extend in the vertical direction on the loading platform side,
A fall prevention mechanism comprising: when the large display is moved up and down, the sliding member slides in the vertical direction while contacting the inner surface of the recess of the cargo bed side rail, so that the large display falls down. The large display device according to claim 1, further comprising a fall prevention mechanism for preventing the fall.   The table fixing member includes a fixing bar that extends and is fixed in a direction orthogonal to the screen of the large display on the upper surface of the elevating table, and the tip of the fixing bar extends to the lower surface at the upper surface end of the elevating table. The large display device according to claim 1, wherein the display device is fixed around the lifting table. A vehicle equipped with a large display comprising the large display device according to any one of claims 1 to 3,
A vehicle equipped with a large display, wherein the cargo bed is a wing body having a transparent wing on a side surface facing the screen of the large display.   The vehicle with a large display according to claim 4, wherein the transparent wing includes a plurality of transparent divided polycarbonate plates and a transparent connection polycarbonate bar for connecting the adjacent transparent polycarbonate plates.

Images